Wormherder Creek Tracer Experiment
|Authors:||Adam Wlostowski · Diane McKnight · Nicholas Schulte · Kathleen Welch|
|Resource type:||Composite Resource|
|Created:||Jan 09, 2019 at 5:44 p.m.|
|Last updated:||Jan 09, 2019 at 6:53 p.m. by Adam Wlostowski|
A tracer experiment in the Wormherder Creek wetland, Antarctica was designed to quantify the extent of surface water and shallow groundwater mixing. On January 8, 2009, we conducted a tracer injection with a solution of lithium chloride (LiCl, 5.2 kg/20L) and sodium bromide (NaBr 889 g/20L) dissolved in 20 L of distilled water, corresponding to concentrations of 6.25 M Li+ and Cl-, 0.43 M Na+ and Br-. Previous experiments in the MDV using LiCl have shown that Li+ is generally conservative, with minimal exchange of Na+ occurring in dilute systems. A 2-hour continuous injection of the tracer solution at an injection rate of 120 mL/min was conducted in the small stream that originated from a spring located above the wetland.. At this site, the stream flowed over a cobble substrate around large boulders and had an average a width of about 0.5 m and an average depth of 8 cm, corresponding to an estimated cross-sectional area of 0.04 m2.
This resource contains water chemistry data from water samples collected from surface waters and shallow groundwaters. Additionally, geospatial data specifying the location of sample sites is provided.
Data are currently being used to assemble a forthcoming publication, expected publication circa May 2019. Until this manuscript is published, the data resource will remain private and only manuscript authors will have access.
Hydrology,McMurdo Dry Valleys,Tracer experiment,Antarctica,Geochemistry,Wetland
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This resource is shared under the Creative Commons Attribution CC BY.http://creativecommons.org/licenses/by/4.0/
|Coordinate System/Geographic Projection:||WGS 84 EPSG:4326|
|Coordinate Units:||Decimal degrees|
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|Adam Wlostowski||University of Colorado;Institute of Arctic and Alpine Research|
|Diane McKnight||University of Colorado, Institute of Arctic and Alpine Research|
|Nicholas Schulte||University of Colorado, Institute of Arctic and Alpine Research|
|Kathleen Welch||University of Colorado, Institute of Arctic and Alpine Research|
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This resource was created using funding from the following sources:
|Agency Name||Award Title||Award Number|
|U.S. National Science Foundation||McMurdo Long Term Ecological Research project||1115245|
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